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Bug 604032 - x11-plugins/gkrellm-cpupower-0.1.6-r1 with >=sys-power/cpupower-4.7.0 warning: implicit declaration of function ‘cpufreq_cpu_exists’
Summary: x11-plugins/gkrellm-cpupower-0.1.6-r1 with >=sys-power/cpupower-4.7.0 warning...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Lars Wendler (Polynomial-C) (RETIRED)
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Depends on: 622736
Blocks:
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Reported: 2016-12-29 13:42 UTC by Tomasz Golinski
Modified: 2017-07-07 08:07 UTC (History)
0 users

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Description Tomasz Golinski 2016-12-29 13:42:22 UTC 
Starting from kernel 4.7 the function cpufreq_cpu_exists() (used to determine number of CPU cores) is removed in favour of cpupower_is_cpu_online(). It is not exactly the same thing and it needs additional header cpuidle.h:  

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/tools/power/cpupower/lib?id=ac5a181

Instead of using that new function, one solution is just to perform the test just by calling cpufreq_get_freq_kernel(), see e.g. this commit in my fork https://github.com/tomaszg7/gkrellm2-cpupower/commit/7a71966ced4b88ea14a921e3f4d0a926f172aaf3
Comment 1 Lars Wendler (Polynomial-C) (RETIRED) gentoo-dev 2017-07-07 08:07:46 UTC 
Should be fixed in x11-plugins/gkrellm-cpupower-0.2